/**
 * Created by Administrator on 2019/1/8.
 */
var btn = $('#getMsgcode');
var num = 60;
var timer ;

btn.click(function(){

    $(this).attr('disabled',true);

    btn.text(num +'s');

    timer = setInterval(function(){

        if(num <= 1){
            clearInterval(timer);
            btn.text('获取验证码');
            btn.attr('disabled',false);
            num=60;
        }else{
            num--;
            btn.text(num+'s');
        }


    },1000);


});